In the 80s & 90s' - Before 1995 there was little in terms of specific training for young drivers once they’d passed. If you wanted extra training after you’d passed your test you could take the Advanced Driving Test (which, at the time was something travelling sales people and middle aged drivers were more likely to take).
Today - Today young drivers have opted to take a Pass Plus course, giving them as much knowledge and skill as possible when it comes to driving and in theory make you less likely be involved in an accident! The DVSA introduced
‘Pass Plus’ in 1995. This is an optional course that drivers can take after passing their practical driving test which allows them to get additional driving experience by an Approved Driving Instructor (ADI).